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18 Cards in this Set
- Front
- Back
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what are 2 halogen disinfectants approved for use in the coast guard?
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bromine and chlorine
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name the 3 agencies and authorities that have guidance on approved shore-sides sites for water?
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•United States Public Health Service
•United States Navy Medical Reps •United States Gov't Reps |
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potable water with bromine levels exceeding ________ per liter should not be ingested.
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2.7 milligrams (mg/l)
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what are the saftey requirements for handling bromine and chlorine?
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•skin protection
•eye protection •respiratoru protection •ventilation |
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name the first aid rules that apply when dealing with bromine?
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•inhalation (fresh air)
•ingestion (dont induce vommiting or give oral treatment) •skin (flush immediately for 30min) •eyes (flush immediately for 30min) |
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what are 2 forms of chlorine typically available for shipboard and shore-side use?
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•calcium hypochlorite (granular)---> HTH
•sodium hypochlortie. (liquid bleach) |
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FAC?
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Free Available Chlorine
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TBR?
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total bromine residual
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Halogen Standards
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..
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what is more effective at a lower, more acidic pH value and warmer temps?
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Halogenations
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what are 2 types of mechanical bromination systems used for the treatment of potable water?
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• automatic proportioning brominator
• recirculating brominator |
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what CG form is used
to submit a Potable Water Quality Log? |
CG-5648
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what is the minimum amount FAC or TBR halogen to be maintained in a potable water system?
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0.2 ppm (after 30min in tank)
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what is the amount of halogen to be maintained where amebiasis or hepatitis is endemic or the water is from an unapproved source?
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2.0 ppm (after 30min in tank)
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what electronic device is used to test potable water?
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colorimeter
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True or False.
Bromine cartridges may be depleted more rapidly in water with low temps. |
False. it will deplete more
rapidly in water with high temps. |
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on ships w/out medical departments, the engineering dep. shall maintain what type of potable water record?
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a 2 year chronological record of potable water monitoring
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what procedure uses over the counter bleach products as a source for sodium hypochlorite?
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batch chlorination
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